Lepton electric and magnetic dipole moments via lepton flavor-violating spin-1 unparticle interactions

Journal Article · Sat Oct 01 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.073010· OSTI ID:21607756

Moyotl, A; Rosado, A; Tavares-Velasco, G ^[1]

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1. Instituto de Fisica, Benemerita Universidad Autonoma de Puebla, Apartado Postal 72570, Puebla (Mexico)

The magnetic dipole moment and the electric dipole moment of leptons are calculated under the assumption of lepton flavor violation (LFV) induced by spin-1 unparticles with both vector and axial-vector couplings to leptons, including a CP-violating phase. The experimental limits on the muon magnetic dipole moment and LFV process, such as the decay l{sub i}{sup -}{yields}l{sub j}{sup -}l{sub k}{sup -}l{sub k}{sup +}, are then used to constrain the LFV couplings for particular values of the unparticle operator dimension d{sub U} and the unparticle scale {Lambda}{sub U}, assuming that LFV transitions between the tau and muon leptons are dominant. It is found that the current experimental constraints favor a scenario with dominance of the vector couplings over the axial-vector couplings. We also obtain estimates for the electric dipole moments of the electron and the muon, which are well below the experimental values.

• OSTI ID: 21607756
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 84; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
COMPOSITE MODELS
COMPUTERIZED SIMULATION
COUPLING
CP INVARIANCE
DECAY
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FLAVOR MODEL
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTONS
MAGNETIC DIPOLE MOMENTS
MAGNETIC MOMENTS
MATHEMATICAL MODELS
MUONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL
SIMULATION
SPIN